Tore gustaf emanuel lindmark



110,751,315. PATENTED FEB. 2, 1904. T. G. E. LINDMARK.

TURBINE WHEEL.

APPLICATION FILED JUNE 2. 1903.

,uo MODEL.

WITNESSES: I INVENTOR ATTORNEY rqz uonma rzmu cm. worn-um. wAwms qu. a.c.

UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

TURBINE-WHEEL.

SPECIFICATION forming part of Letters Patent No. "751,315 dated February2, 1904.

Application filedJune 2, 1903. Serial No. 169,723. (No model.)

To all whom i-t may concern.-

Be it known that I, ToRE GUSTAF EMANUEL LINDMARK, a subject of the Kingof Sweden and Norway, and a resident of Stockholm, Sweden, have inventeda new and useful Improvement in Turbine -Wheels, of which the followingis a specification.

The invention relates to elastic-fluid turbinewheels; and it consists inthe construction and arrangement of the buckets in a wheel of theoutward-flow type.

In the accompanying drawings, Figure 1 is a section of the outer portionof a wheel on the line a: w of Fig. 2. Fig. 2 is a section on the line yy of Fig.- 1, and Fig. 3 is a section on the line 2 z of Fig. 2. 7

Similar letters of reference indicate like parts.

The wheel to which the bucket is applied is formed of two heads A B,between which the steam enters at the center and escapes .at theperiphery in the usual way. At the circumference of the wheel the headsare inwardly bent to produce a contracted escapeis provided with sideflanges D, which when the buckets are in place rest against the innerfaces of the heads and are secured thereto by rivets E.

1. In combination with a turbine-wheel having heads A B inwardlyinclined at their circumferential edge to form a contractedescapeopening, a bucket adapted to fit transversely said opening andprovided with flanges D at its side edges; the said flanges beingsecured to said heads. 1 I

2. In combination with an outward-flow turbine-wheel having heads A Binwardly inclined at their circumferential edges to form a contractedescape opening, .a plurality of buckets all bent -in the same directionand adapted to fit transversely said .opening and provided with flangesD at-their side edges; the said flanges being secured to said heads.

In testimony whereof I have signed my name 7 p to this specificationin'the presence of two subscribing witnesses.

TORE GUSTAF EMANUEL LINDMARK. Witnesses:

HERM. FORSSBERG, K. GUsT. ALMEUF.

